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- Table of Contents
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- 01-Fundamentals Configuration Guide
- 00-Preface
- 01-CLI configuration
- 02-RBAC configuration
- 03-Login management configuration
- 04-FTP and TFTP configuration
- 05-File system management configuration
- 06-Configuration file management configuration
- 07-Software upgrade configuration
- 08-Emergency shell configuration
- 09-Automatic configuration
- 10-Device management configuration
- 11-Tcl configuration
- 12-Python configuration
- 13-License management
- 14-RAID management configuration
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 14-RAID management configuration | 56.32 KB |
Contents
Restrictions: Hardware compatibility with RAID
Restrictions and guidelines: RAID management
Prerequisites for RAID management
Display and maintenance commands for RAID
Managing RAIDs
About RAID
Redundant Array of Independent Disks (RAID) ensures data reliability and speeds up data reading and writing by storing data in multiple hard disks.
Level-1 RAID uses disk mirroring to ensure data reliability. While the system is writing data on the primary disk, it simultaneously mirrors the data to the backup disk. When the primary disk is damaged, the system will read or write data from the backup disk according to the mirroring. If both disks are damaged, data is lost. To avoid data loss, replace a damaged disk in time.
On a level-1 RAID, the maximum amount of available storage space is half of the total amount of storage space on all hard disks.
Restrictions: Hardware compatibility with RAID
This feature is supported only on the H3C MSR3610-I iMC EAD End-user Admission Defense Gateway (referred to as the EAD gateway in this document).
Restrictions and guidelines: RAID management
On the EAD gateway, only SIC slot 1 and slot 2 support inserting SIC-M2-SATA drives with SSD to create a RAID. The drive name of the SIC-M2-SATA drive installed in SIC slot 1 is hdb. The drive name of the SIC-M2-SATA drive installed in SIC slot 2 is hdc.
The EAD gateway supports only a level-1 RAID. The drive name of the RAID is md0.
Prerequisites for RAID management
Before creating a RAID, make sure that the SIC-M2-SATA drives in SIC slot 1 and slot 2 each have only one partition and the file system format is EXT4.
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CAUTION: The partition and file system format modification operations will delete all data from a hard disk. |
For more information about partitioning the hard disks and modifying the file system format, see "Managing file systems."
Creating a RAID
Restrictions and guidelines
The creation operation will clear all data from the drives used to create the level-1 RAID.
Procedure
1. Enter system view.
system-view
2. Enter RAID view.
raid
3. Create a RAID.
create raid level level-number
Removing a RAID
About this task
Perform this task to remove a RAID and clear the super block.
Restrictions and guidelines
Removing a RAID also clears all data from the member drives of the RAID.
Procedure
1. Enter system view.
system-view
2. Enter RAID view.
raid
3. Remove a RAID.
remove raid target
Restoring a RAID
About this task
If one of the member drives in a RAID is damaged, you can replace the damaged drive with a new drive and restore the RAID.
Restrictions and guidelines
To avoid data loss, replace a damaged disk in time.
Verify that the new SIC-M2-SATA drive has only one partition and the file system format is EXT4.
· If yes, the system automatically restores the RAID.
· If no, configure the drive to have only one partition and set the file system format to EXT4. Then, perform this task to manually restore the RAID.
RAID restoration will clear all data from the new SIC-M2-SATA drive.
Procedure
1. Enter system view.
system-view
2. Enter RAID view.
raid
3. Manually restore a RAID.
restore raid target
Display and maintenance commands for RAID
Execute display commands in any view.
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Task |
Command |
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Display detailed RAID information. |
display raid status |
